package guestbook;

import java.io.IOException;
import javax.servlet.http.*;

import com.google.appengine.api.users.User;
import com.google.appengine.api.users.UserService;
import com.google.appengine.api.users.UserServiceFactory;


public class GuestbookServlet extends HttpServlet {
    /**
	 * 
	 */
	private static final long serialVersionUID = -7759593256585062849L;

	@Override
    public void doGet(HttpServletRequest req, HttpServletResponse resp)
            throws IOException {
		
		UserService userService = UserServiceFactory.getUserService();
		User user = userService.getCurrentUser();
		
		if(user != null) {
	        resp.setContentType("text/plain");
	        resp.getWriter().println("Hello there, " + user.getNickname());
		}
		else
		{
			resp.sendRedirect(userService.createLoginURL(req.getRequestURI()));
		}
    }
}